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[KRC09b] Performance of multi-user chaos-based DS-CDMA system over multipath channelConférence Internationale avec comité de lecture : ISCAS 2009. IEEE International Symposium on Circuits and Systems, May 2009, pp.2637 - 2640 , Taipei, Taiwan, (DOI: 10.1109/ISCAS.2009.5118343 )
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In this paper, we propose a new approach to compute the exact bit error rate expression for asynchronous chaos-based DS-CDMA system over multipath channel. Perfect estimation of the channel coefficients with the associated delays and chaos synchronization are assumed. A simple RAKE receiver structure is considered. A stationary multipath channel with constant gain is assumed. An asynchronous multi-user chaos-based DS-CDMA system is then defined and the BER is derived in terms of the energy distribution, the number of paths, the noise variances, and the number of users.
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